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Finding the Fourth Proportional to 292,531.50, 438,797.25 and 70,915.50

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Solution

The fourth proportional to 292,531.50, 438,797.25 and 70,915.50 is: 106,373.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,531.50 : 438,797.25 = 70,915.50 : x
  2. Step 2: Convert to fraction form
    292,531.50/438,797.25 = 70,915.50/x
  3. Step 3: Cross multiply
    292,531.50x = 438,797.25 × 70,915.50
  4. Step 4: Simplify right side
    292,531.50x = 31,117,526,382.38
  5. Step 5: Solve for x
    x = 31,117,526,382.38/292,531.50
  6. Step 6: Final answer
    x = 106,373.25

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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.