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Finding the Fourth Proportional to 459,172.34, 688,773.88 and 159,655.51

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Solution

The fourth proportional to 459,172.34, 688,773.88 and 159,655.51 is: 239,488.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,172.34 : 688,773.88 = 159,655.51 : x
  2. Step 2: Convert to fraction form
    459,172.34/688,773.88 = 159,655.51/x
  3. Step 3: Cross multiply
    459,172.34x = 688,773.88 × 159,655.51
  4. Step 4: Simplify right side
    459,172.34x = 109,966,541,642.21
  5. Step 5: Solve for x
    x = 109,966,541,642.21/459,172.34
  6. Step 6: Final answer
    x = 239,488.60

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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.