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Finding the Fourth Proportional to 124,792.60, 186,800.10 and 89,800.60

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Solution

The fourth proportional to 124,792.60, 186,800.10 and 89,800.60 is: 134,421.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,792.60 : 186,800.10 = 89,800.60 : x
  2. Step 2: Convert to fraction form
    124,792.60/186,800.10 = 89,800.60/x
  3. Step 3: Cross multiply
    124,792.60x = 186,800.10 × 89,800.60
  4. Step 4: Simplify right side
    124,792.60x = 16,774,761,060.06
  5. Step 5: Solve for x
    x = 16,774,761,060.06/124,792.60
  6. Step 6: Final answer
    x = 134,421.12

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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.