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Finding the Fourth Proportional to 88,124.90, 121,609.01 and 47,837.79

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Solution

The fourth proportional to 88,124.90, 121,609.01 and 47,837.79 is: 66,014.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,124.90 : 121,609.01 = 47,837.79 : x
  2. Step 2: Convert to fraction form
    88,124.90/121,609.01 = 47,837.79/x
  3. Step 3: Cross multiply
    88,124.90x = 121,609.01 × 47,837.79
  4. Step 4: Simplify right side
    88,124.90x = 5,817,506,402.08
  5. Step 5: Solve for x
    x = 5,817,506,402.08/88,124.90
  6. Step 6: Final answer
    x = 66,014.34

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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.