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Finding the Fourth Proportional to 86,068.86, 129,132.45 and 43,966.68

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Solution

The fourth proportional to 86,068.86, 129,132.45 and 43,966.68 is: 65,964.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,068.86 : 129,132.45 = 43,966.68 : x
  2. Step 2: Convert to fraction form
    86,068.86/129,132.45 = 43,966.68/x
  3. Step 3: Cross multiply
    86,068.86x = 129,132.45 × 43,966.68
  4. Step 4: Simplify right side
    86,068.86x = 5,677,525,106.77
  5. Step 5: Solve for x
    x = 5,677,525,106.77/86,068.86
  6. Step 6: Final answer
    x = 65,964.92

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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.