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Finding the Fourth Proportional to 185,915.34, 256,564.80 and 101,032.40

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Solution

The fourth proportional to 185,915.34, 256,564.80 and 101,032.40 is: 139,425.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,915.34 : 256,564.80 = 101,032.40 : x
  2. Step 2: Convert to fraction form
    185,915.34/256,564.80 = 101,032.40/x
  3. Step 3: Cross multiply
    185,915.34x = 256,564.80 × 101,032.40
  4. Step 4: Simplify right side
    185,915.34x = 25,921,357,499.52
  5. Step 5: Solve for x
    x = 25,921,357,499.52/185,915.34
  6. Step 6: Final answer
    x = 139,425.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.