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Finding the Fourth Proportional to 115,326.60, 172,989.90 and 62,838.60

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Solution

The fourth proportional to 115,326.60, 172,989.90 and 62,838.60 is: 94,257.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,326.60 : 172,989.90 = 62,838.60 : x
  2. Step 2: Convert to fraction form
    115,326.60/172,989.90 = 62,838.60/x
  3. Step 3: Cross multiply
    115,326.60x = 172,989.90 × 62,838.60
  4. Step 4: Simplify right side
    115,326.60x = 10,870,443,130.14
  5. Step 5: Solve for x
    x = 10,870,443,130.14/115,326.60
  6. Step 6: Final answer
    x = 94,257.90

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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.