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Finding the Fourth Proportional to 94,088.32, 129,900.41 and 65,398.93

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Solution

The fourth proportional to 94,088.32, 129,900.41 and 65,398.93 is: 90,291.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,088.32 : 129,900.41 = 65,398.93 : x
  2. Step 2: Convert to fraction form
    94,088.32/129,900.41 = 65,398.93/x
  3. Step 3: Cross multiply
    94,088.32x = 129,900.41 × 65,398.93
  4. Step 4: Simplify right side
    94,088.32x = 8,495,347,414.06
  5. Step 5: Solve for x
    x = 8,495,347,414.06/94,088.32
  6. Step 6: Final answer
    x = 90,291.20

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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.