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Finding the Fourth Proportional to 124,719.40, 187,079.10 and 93,615.40

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Solution

The fourth proportional to 124,719.40, 187,079.10 and 93,615.40 is: 140,423.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,719.40 : 187,079.10 = 93,615.40 : x
  2. Step 2: Convert to fraction form
    124,719.40/187,079.10 = 93,615.40/x
  3. Step 3: Cross multiply
    124,719.40x = 187,079.10 × 93,615.40
  4. Step 4: Simplify right side
    124,719.40x = 17,513,484,778.14
  5. Step 5: Solve for x
    x = 17,513,484,778.14/124,719.40
  6. Step 6: Final answer
    x = 140,423.10

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1.5x scale

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.