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Finding the Fourth Proportional to 93,647.88, 129,209.17 and 53,360.78

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Solution

The fourth proportional to 93,647.88, 129,209.17 and 53,360.78 is: 73,623.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,647.88 : 129,209.17 = 53,360.78 : x
  2. Step 2: Convert to fraction form
    93,647.88/129,209.17 = 53,360.78/x
  3. Step 3: Cross multiply
    93,647.88x = 129,209.17 × 53,360.78
  4. Step 4: Simplify right side
    93,647.88x = 6,894,702,094.35
  5. Step 5: Solve for x
    x = 6,894,702,094.35/93,647.88
  6. Step 6: Final answer
    x = 73,623.69

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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.