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Finding the Fourth Proportional to 514,392.96, 771,307.56 and 159,308.40

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Solution

The fourth proportional to 514,392.96, 771,307.56 and 159,308.40 is: 238,875.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,392.96 : 771,307.56 = 159,308.40 : x
  2. Step 2: Convert to fraction form
    514,392.96/771,307.56 = 159,308.40/x
  3. Step 3: Cross multiply
    514,392.96x = 771,307.56 × 159,308.40
  4. Step 4: Simplify right side
    514,392.96x = 122,875,773,291.50
  5. Step 5: Solve for x
    x = 122,875,773,291.50/514,392.96
  6. Step 6: Final answer
    x = 238,875.30

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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.