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Finding the Fourth Proportional to 369,206.65, 553,809.91 and 88,723.90

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Solution

The fourth proportional to 369,206.65, 553,809.91 and 88,723.90 is: 133,085.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,206.65 : 553,809.91 = 88,723.90 : x
  2. Step 2: Convert to fraction form
    369,206.65/553,809.91 = 88,723.90/x
  3. Step 3: Cross multiply
    369,206.65x = 553,809.91 × 88,723.90
  4. Step 4: Simplify right side
    369,206.65x = 49,136,174,630.23
  5. Step 5: Solve for x
    x = 49,136,174,630.23/369,206.65
  6. Step 6: Final answer
    x = 133,085.83

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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.