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Finding the Fourth Proportional to 116,509.77, 160,732.89 and 74,045.52

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Solution

The fourth proportional to 116,509.77, 160,732.89 and 74,045.52 is: 102,150.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,509.77 : 160,732.89 = 74,045.52 : x
  2. Step 2: Convert to fraction form
    116,509.77/160,732.89 = 74,045.52/x
  3. Step 3: Cross multiply
    116,509.77x = 160,732.89 × 74,045.52
  4. Step 4: Simplify right side
    116,509.77x = 11,901,550,421.15
  5. Step 5: Solve for x
    x = 11,901,550,421.15/116,509.77
  6. Step 6: Final answer
    x = 102,150.66

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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.