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Finding the Fourth Proportional to 475,261.16, 712,741.02 and 155,340.68

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Solution

The fourth proportional to 475,261.16, 712,741.02 and 155,340.68 is: 232,961.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,261.16 : 712,741.02 = 155,340.68 : x
  2. Step 2: Convert to fraction form
    475,261.16/712,741.02 = 155,340.68/x
  3. Step 3: Cross multiply
    475,261.16x = 712,741.02 × 155,340.68
  4. Step 4: Simplify right side
    475,261.16x = 110,717,674,710.69
  5. Step 5: Solve for x
    x = 110,717,674,710.69/475,261.16
  6. Step 6: Final answer
    x = 232,961.76

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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.