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Finding the Fourth Proportional to 93,167.61, 128,589.51 and 59,215.65

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Solution

The fourth proportional to 93,167.61, 128,589.51 and 59,215.65 is: 81,729.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,167.61 : 128,589.51 = 59,215.65 : x
  2. Step 2: Convert to fraction form
    93,167.61/128,589.51 = 59,215.65/x
  3. Step 3: Cross multiply
    93,167.61x = 128,589.51 × 59,215.65
  4. Step 4: Simplify right side
    93,167.61x = 7,614,511,417.83
  5. Step 5: Solve for x
    x = 7,614,511,417.83/93,167.61
  6. Step 6: Final answer
    x = 81,729.17

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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.