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Finding the Fourth Proportional to 86,732.95, 119,711.47 and 56,465.56

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Solution

The fourth proportional to 86,732.95, 119,711.47 and 56,465.56 is: 77,935.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,732.95 : 119,711.47 = 56,465.56 : x
  2. Step 2: Convert to fraction form
    86,732.95/119,711.47 = 56,465.56/x
  3. Step 3: Cross multiply
    86,732.95x = 119,711.47 × 56,465.56
  4. Step 4: Simplify right side
    86,732.95x = 6,759,575,191.97
  5. Step 5: Solve for x
    x = 6,759,575,191.97/86,732.95
  6. Step 6: Final answer
    x = 77,935.49

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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.