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Finding the Fourth Proportional to 118,210.80, 177,431.40 and 59,113.20

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Solution

The fourth proportional to 118,210.80, 177,431.40 and 59,113.20 is: 88,727.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,210.80 : 177,431.40 = 59,113.20 : x
  2. Step 2: Convert to fraction form
    118,210.80/177,431.40 = 59,113.20/x
  3. Step 3: Cross multiply
    118,210.80x = 177,431.40 × 59,113.20
  4. Step 4: Simplify right side
    118,210.80x = 10,488,537,834.48
  5. Step 5: Solve for x
    x = 10,488,537,834.48/118,210.80
  6. Step 6: Final answer
    x = 88,727.41

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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.