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Finding the Fourth Proportional to 292,506.13, 438,759.19 and 70,890.13

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Solution

The fourth proportional to 292,506.13, 438,759.19 and 70,890.13 is: 106,335.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,506.13 : 438,759.19 = 70,890.13 : x
  2. Step 2: Convert to fraction form
    292,506.13/438,759.19 = 70,890.13/x
  3. Step 3: Cross multiply
    292,506.13x = 438,759.19 × 70,890.13
  4. Step 4: Simplify right side
    292,506.13x = 31,103,693,824.00
  5. Step 5: Solve for x
    x = 31,103,693,824.00/292,506.13
  6. Step 6: Final answer
    x = 106,335.19

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Similar ratio
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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.