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Finding the Fourth Proportional to 348,001.65, 521,753.40 and 134,586.90

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Solution

The fourth proportional to 348,001.65, 521,753.40 and 134,586.90 is: 201,784.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,001.65 : 521,753.40 = 134,586.90 : x
  2. Step 2: Convert to fraction form
    348,001.65/521,753.40 = 134,586.90/x
  3. Step 3: Cross multiply
    348,001.65x = 521,753.40 × 134,586.90
  4. Step 4: Simplify right side
    348,001.65x = 70,221,172,670.46
  5. Step 5: Solve for x
    x = 70,221,172,670.46/348,001.65
  6. Step 6: Final answer
    x = 201,784.02

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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.