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Finding the Fourth Proportional to 92,507.08, 127,573.10 and 61,407.30

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Solution

The fourth proportional to 92,507.08, 127,573.10 and 61,407.30 is: 84,684.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,507.08 : 127,573.10 = 61,407.30 : x
  2. Step 2: Convert to fraction form
    92,507.08/127,573.10 = 61,407.30/x
  3. Step 3: Cross multiply
    92,507.08x = 127,573.10 × 61,407.30
  4. Step 4: Simplify right side
    92,507.08x = 7,833,919,623.63
  5. Step 5: Solve for x
    x = 7,833,919,623.63/92,507.08
  6. Step 6: Final answer
    x = 84,684.54

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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.