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Finding the Fourth Proportional to 124,564,602.80, 186,846,904.20 and 118,329,028.40

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Solution

The fourth proportional to 124,564,602.80, 186,846,904.20 and 118,329,028.40 is: 177,493,542.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,564,602.80 : 186,846,904.20 = 118,329,028.40 : x
  2. Step 2: Convert to fraction form
    124,564,602.80/186,846,904.20 = 118,329,028.40/x
  3. Step 3: Cross multiply
    124,564,602.80x = 186,846,904.20 × 118,329,028.40
  4. Step 4: Simplify right side
    124,564,602.80x = 22,109,412,633,533,880
  5. Step 5: Solve for x
    x = 22,109,412,633,533,880/124,564,602.80
  6. Step 6: Final answer
    x = 177,493,542.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.