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Finding the Fourth Proportional to 570,445.68, 855,603.72 and 149,754.36

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Solution

The fourth proportional to 570,445.68, 855,603.72 and 149,754.36 is: 224,614.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,445.68 : 855,603.72 = 149,754.36 : x
  2. Step 2: Convert to fraction form
    570,445.68/855,603.72 = 149,754.36/x
  3. Step 3: Cross multiply
    570,445.68x = 855,603.72 × 149,754.36
  4. Step 4: Simplify right side
    570,445.68x = 128,130,387,502.22
  5. Step 5: Solve for x
    x = 128,130,387,502.22/570,445.68
  6. Step 6: Final answer
    x = 224,614.53

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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.