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Finding the Fourth Proportional to 292,647.29, 438,632.08 and 134,543.93

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Solution

The fourth proportional to 292,647.29, 438,632.08 and 134,543.93 is: 201,660.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,647.29 : 438,632.08 = 134,543.93 : x
  2. Step 2: Convert to fraction form
    292,647.29/438,632.08 = 134,543.93/x
  3. Step 3: Cross multiply
    292,647.29x = 438,632.08 × 134,543.93
  4. Step 4: Simplify right side
    292,647.29x = 59,015,281,337.75
  5. Step 5: Solve for x
    x = 59,015,281,337.75/292,647.29
  6. Step 6: Final answer
    x = 201,660.10

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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.