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Finding the Fourth Proportional to 475,366.21, 712,898.78 and 155,444.16

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Solution

The fourth proportional to 475,366.21, 712,898.78 and 155,444.16 is: 233,117.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,366.21 : 712,898.78 = 155,444.16 : x
  2. Step 2: Convert to fraction form
    475,366.21/712,898.78 = 155,444.16/x
  3. Step 3: Cross multiply
    475,366.21x = 712,898.78 × 155,444.16
  4. Step 4: Simplify right side
    475,366.21x = 110,815,950,499.92
  5. Step 5: Solve for x
    x = 110,815,950,499.92/475,366.21
  6. Step 6: Final answer
    x = 233,117.01

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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.