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Finding the Fourth Proportional to 458,688.56, 688,010.76 and 155,062.49

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Solution

The fourth proportional to 458,688.56, 688,010.76 and 155,062.49 is: 232,586.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,688.56 : 688,010.76 = 155,062.49 : x
  2. Step 2: Convert to fraction form
    458,688.56/688,010.76 = 155,062.49/x
  3. Step 3: Cross multiply
    458,688.56x = 688,010.76 × 155,062.49
  4. Step 4: Simplify right side
    458,688.56x = 106,684,658,152.34
  5. Step 5: Solve for x
    x = 106,684,658,152.34/458,688.56
  6. Step 6: Final answer
    x = 232,586.27

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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.