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Finding the Fourth Proportional to 292,463.73, 438,695.60 and 105,475.23

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Solution

The fourth proportional to 292,463.73, 438,695.60 and 105,475.23 is: 158,212.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,463.73 : 438,695.60 = 105,475.23 : x
  2. Step 2: Convert to fraction form
    292,463.73/438,695.60 = 105,475.23/x
  3. Step 3: Cross multiply
    292,463.73x = 438,695.60 × 105,475.23
  4. Step 4: Simplify right side
    292,463.73x = 46,271,518,782.61
  5. Step 5: Solve for x
    x = 46,271,518,782.61/292,463.73
  6. Step 6: Final answer
    x = 158,212.85

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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.