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Finding the Fourth Proportional to 355,376.70, 532,870.65 and 144,776.70

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Solution

The fourth proportional to 355,376.70, 532,870.65 and 144,776.70 is: 217,085.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,376.70 : 532,870.65 = 144,776.70 : x
  2. Step 2: Convert to fraction form
    355,376.70/532,870.65 = 144,776.70/x
  3. Step 3: Cross multiply
    355,376.70x = 532,870.65 × 144,776.70
  4. Step 4: Simplify right side
    355,376.70x = 77,147,254,233.86
  5. Step 5: Solve for x
    x = 77,147,254,233.86/355,376.70
  6. Step 6: Final answer
    x = 217,085.85

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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.