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Finding the Fourth Proportional to 105,593.60, 145,719.16 and 63,152.13

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Solution

The fourth proportional to 105,593.60, 145,719.16 and 63,152.13 is: 87,149.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,593.60 : 145,719.16 = 63,152.13 : x
  2. Step 2: Convert to fraction form
    105,593.60/145,719.16 = 63,152.13/x
  3. Step 3: Cross multiply
    105,593.60x = 145,719.16 × 63,152.13
  4. Step 4: Simplify right side
    105,593.60x = 9,202,475,335.81
  5. Step 5: Solve for x
    x = 9,202,475,335.81/105,593.60
  6. Step 6: Final answer
    x = 87,149.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.