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Finding the Fourth Proportional to 86,312.66, 129,417.14 and 33,746.90

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Solution

The fourth proportional to 86,312.66, 129,417.14 and 33,746.90 is: 50,600.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,312.66 : 129,417.14 = 33,746.90 : x
  2. Step 2: Convert to fraction form
    86,312.66/129,417.14 = 33,746.90/x
  3. Step 3: Cross multiply
    86,312.66x = 129,417.14 × 33,746.90
  4. Step 4: Simplify right side
    86,312.66x = 4,367,426,719.15
  5. Step 5: Solve for x
    x = 4,367,426,719.15/86,312.66
  6. Step 6: Final answer
    x = 50,600.07

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.