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Finding the Fourth Proportional to 356,389.31, 534,663.75 and 119,725.53

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Solution

The fourth proportional to 356,389.31, 534,663.75 and 119,725.53 is: 179,615.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,389.31 : 534,663.75 = 119,725.53 : x
  2. Step 2: Convert to fraction form
    356,389.31/534,663.75 = 119,725.53/x
  3. Step 3: Cross multiply
    356,389.31x = 534,663.75 × 119,725.53
  4. Step 4: Simplify right side
    356,389.31x = 64,012,900,840.54
  5. Step 5: Solve for x
    x = 64,012,900,840.54/356,389.31
  6. Step 6: Final answer
    x = 179,615.10

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1.5x scale

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.