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Finding the Fourth Proportional to 475,320.42, 713,139.48 and 155,486.88

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Solution

The fourth proportional to 475,320.42, 713,139.48 and 155,486.88 is: 233,282.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,320.42 : 713,139.48 = 155,486.88 : x
  2. Step 2: Convert to fraction form
    475,320.42/713,139.48 = 155,486.88/x
  3. Step 3: Cross multiply
    475,320.42x = 713,139.48 × 155,486.88
  4. Step 4: Simplify right side
    475,320.42x = 110,883,832,750.02
  5. Step 5: Solve for x
    x = 110,883,832,750.02/475,320.42
  6. Step 6: Final answer
    x = 233,282.28

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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.