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Finding the Fourth Proportional to 472,513.60, 708,775.80 and 117,528.40

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Solution

The fourth proportional to 472,513.60, 708,775.80 and 117,528.40 is: 176,293.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,513.60 : 708,775.80 = 117,528.40 : x
  2. Step 2: Convert to fraction form
    472,513.60/708,775.80 = 117,528.40/x
  3. Step 3: Cross multiply
    472,513.60x = 708,775.80 × 117,528.40
  4. Step 4: Simplify right side
    472,513.60x = 83,301,285,732.72
  5. Step 5: Solve for x
    x = 83,301,285,732.72/472,513.60
  6. Step 6: Final answer
    x = 176,293.94

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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.