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Finding the Fourth Proportional to 475,395.16, 712,942.10 and 155,473.10

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Solution

The fourth proportional to 475,395.16, 712,942.10 and 155,473.10 is: 233,160.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,395.16 : 712,942.10 = 155,473.10 : x
  2. Step 2: Convert to fraction form
    475,395.16/712,942.10 = 155,473.10/x
  3. Step 3: Cross multiply
    475,395.16x = 712,942.10 × 155,473.10
  4. Step 4: Simplify right side
    475,395.16x = 110,843,318,407.51
  5. Step 5: Solve for x
    x = 110,843,318,407.51/475,395.16
  6. Step 6: Final answer
    x = 233,160.38

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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.