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Finding the Fourth Proportional to 310,726.17, 466,099.29 and 86,088.77

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Solution

The fourth proportional to 310,726.17, 466,099.29 and 86,088.77 is: 129,135.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,726.17 : 466,099.29 = 86,088.77 : x
  2. Step 2: Convert to fraction form
    310,726.17/466,099.29 = 86,088.77/x
  3. Step 3: Cross multiply
    310,726.17x = 466,099.29 × 86,088.77
  4. Step 4: Simplify right side
    310,726.17x = 40,125,915,416.39
  5. Step 5: Solve for x
    x = 40,125,915,416.39/310,726.17
  6. Step 6: Final answer
    x = 129,135.94

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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.