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Finding the Fourth Proportional to 292,045.60, 438,122.48 and 92,416.24

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Solution

The fourth proportional to 292,045.60, 438,122.48 and 92,416.24 is: 138,641.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,045.60 : 438,122.48 = 92,416.24 : x
  2. Step 2: Convert to fraction form
    292,045.60/438,122.48 = 92,416.24/x
  3. Step 3: Cross multiply
    292,045.60x = 438,122.48 × 92,416.24
  4. Step 4: Simplify right side
    292,045.60x = 40,489,632,261.08
  5. Step 5: Solve for x
    x = 40,489,632,261.08/292,045.60
  6. Step 6: Final answer
    x = 138,641.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.