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Finding the Fourth Proportional to 93,508.78, 129,068.90 and 55,274.76

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Solution

The fourth proportional to 93,508.78, 129,068.90 and 55,274.76 is: 76,295.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,508.78 : 129,068.90 = 55,274.76 : x
  2. Step 2: Convert to fraction form
    93,508.78/129,068.90 = 55,274.76/x
  3. Step 3: Cross multiply
    93,508.78x = 129,068.90 × 55,274.76
  4. Step 4: Simplify right side
    93,508.78x = 7,134,252,470.96
  5. Step 5: Solve for x
    x = 7,134,252,470.96/93,508.78
  6. Step 6: Final answer
    x = 76,295.00

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1.5x scale

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.