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Finding the Fourth Proportional to 459,173.34, 688,775.38 and 159,656.51

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Solution

The fourth proportional to 459,173.34, 688,775.38 and 159,656.51 is: 239,490.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,173.34 : 688,775.38 = 159,656.51 : x
  2. Step 2: Convert to fraction form
    459,173.34/688,775.38 = 159,656.51/x
  3. Step 3: Cross multiply
    459,173.34x = 688,775.38 × 159,656.51
  4. Step 4: Simplify right side
    459,173.34x = 109,967,473,344.72
  5. Step 5: Solve for x
    x = 109,967,473,344.72/459,173.34
  6. Step 6: Final answer
    x = 239,490.11

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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.