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Finding the Fourth Proportional to 160,801.53, 221,702.18 and 114,915.98

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Solution

The fourth proportional to 160,801.53, 221,702.18 and 114,915.98 is: 158,438.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,801.53 : 221,702.18 = 114,915.98 : x
  2. Step 2: Convert to fraction form
    160,801.53/221,702.18 = 114,915.98/x
  3. Step 3: Cross multiply
    160,801.53x = 221,702.18 × 114,915.98
  4. Step 4: Simplify right side
    160,801.53x = 25,477,121,599.75
  5. Step 5: Solve for x
    x = 25,477,121,599.75/160,801.53
  6. Step 6: Final answer
    x = 158,438.30

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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.