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Finding the Fourth Proportional to 171,048,592.68, 256,572,884.04 and 78,905,068.44

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Solution

The fourth proportional to 171,048,592.68, 256,572,884.04 and 78,905,068.44 is: 118,357,600.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,048,592.68 : 256,572,884.04 = 78,905,068.44 : x
  2. Step 2: Convert to fraction form
    171,048,592.68/256,572,884.04 = 78,905,068.44/x
  3. Step 3: Cross multiply
    171,048,592.68x = 256,572,884.04 × 78,905,068.44
  4. Step 4: Simplify right side
    171,048,592.68x = 20,244,900,975,024,384
  5. Step 5: Solve for x
    x = 20,244,900,975,024,384/171,048,592.68
  6. Step 6: Final answer
    x = 118,357,600.36

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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.