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Finding the Fourth Proportional to 93,876.70, 140,812.59 and 31,547.18

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Solution

The fourth proportional to 93,876.70, 140,812.59 and 31,547.18 is: 47,319.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,876.70 : 140,812.59 = 31,547.18 : x
  2. Step 2: Convert to fraction form
    93,876.70/140,812.59 = 31,547.18/x
  3. Step 3: Cross multiply
    93,876.70x = 140,812.59 × 31,547.18
  4. Step 4: Simplify right side
    93,876.70x = 4,442,240,123.00
  5. Step 5: Solve for x
    x = 4,442,240,123.00/93,876.70
  6. Step 6: Final answer
    x = 47,319.94

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1.5x scale

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.