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Finding the Fourth Proportional to 74,124.76, 102,452.16 and 65,566.30

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Solution

The fourth proportional to 74,124.76, 102,452.16 and 65,566.30 is: 90,623.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,124.76 : 102,452.16 = 65,566.30 : x
  2. Step 2: Convert to fraction form
    74,124.76/102,452.16 = 65,566.30/x
  3. Step 3: Cross multiply
    74,124.76x = 102,452.16 × 65,566.30
  4. Step 4: Simplify right side
    74,124.76x = 6,717,409,058.21
  5. Step 5: Solve for x
    x = 6,717,409,058.21/74,124.76
  6. Step 6: Final answer
    x = 90,623.01

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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.