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Finding the Fourth Proportional to 247,148.84, 341,059.68 and 139,714.29

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Solution

The fourth proportional to 247,148.84, 341,059.68 and 139,714.29 is: 192,802.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,148.84 : 341,059.68 = 139,714.29 : x
  2. Step 2: Convert to fraction form
    247,148.84/341,059.68 = 139,714.29/x
  3. Step 3: Cross multiply
    247,148.84x = 341,059.68 × 139,714.29
  4. Step 4: Simplify right side
    247,148.84x = 47,650,911,038.83
  5. Step 5: Solve for x
    x = 47,650,911,038.83/247,148.84
  6. Step 6: Final answer
    x = 192,802.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.