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Finding the Fourth Proportional to 292,065.40, 438,098.10 and 134,601.40

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Solution

The fourth proportional to 292,065.40, 438,098.10 and 134,601.40 is: 201,902.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,065.40 : 438,098.10 = 134,601.40 : x
  2. Step 2: Convert to fraction form
    292,065.40/438,098.10 = 134,601.40/x
  3. Step 3: Cross multiply
    292,065.40x = 438,098.10 × 134,601.40
  4. Step 4: Simplify right side
    292,065.40x = 58,968,617,597.34
  5. Step 5: Solve for x
    x = 58,968,617,597.34/292,065.40
  6. Step 6: Final answer
    x = 201,902.10

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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.