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Finding the Fourth Proportional to 261,575.27, 392,263.30 and 154,989.30

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Solution

The fourth proportional to 261,575.27, 392,263.30 and 154,989.30 is: 232,424.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,575.27 : 392,263.30 = 154,989.30 : x
  2. Step 2: Convert to fraction form
    261,575.27/392,263.30 = 154,989.30/x
  3. Step 3: Cross multiply
    261,575.27x = 392,263.30 × 154,989.30
  4. Step 4: Simplify right side
    261,575.27x = 60,796,613,507.74
  5. Step 5: Solve for x
    x = 60,796,613,507.74/261,575.27
  6. Step 6: Final answer
    x = 232,424.93

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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.