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Finding the Fourth Proportional to 570,433.68, 855,585.72 and 149,742.36

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Solution

The fourth proportional to 570,433.68, 855,585.72 and 149,742.36 is: 224,596.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,433.68 : 855,585.72 = 149,742.36 : x
  2. Step 2: Convert to fraction form
    570,433.68/855,585.72 = 149,742.36/x
  3. Step 3: Cross multiply
    570,433.68x = 855,585.72 × 149,742.36
  4. Step 4: Simplify right side
    570,433.68x = 128,117,424,895.10
  5. Step 5: Solve for x
    x = 128,117,424,895.10/570,433.68
  6. Step 6: Final answer
    x = 224,596.53

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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.