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Finding the Fourth Proportional to 108,547.70, 162,821.55 and 64,151.60

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Solution

The fourth proportional to 108,547.70, 162,821.55 and 64,151.60 is: 96,227.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,547.70 : 162,821.55 = 64,151.60 : x
  2. Step 2: Convert to fraction form
    108,547.70/162,821.55 = 64,151.60/x
  3. Step 3: Cross multiply
    108,547.70x = 162,821.55 × 64,151.60
  4. Step 4: Simplify right side
    108,547.70x = 10,445,262,946.98
  5. Step 5: Solve for x
    x = 10,445,262,946.98/108,547.70
  6. Step 6: Final answer
    x = 96,227.40

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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.