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Finding the Fourth Proportional to 127,312.83, 175,692.95 and 69,951.23

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Solution

The fourth proportional to 127,312.83, 175,692.95 and 69,951.23 is: 96,533.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,312.83 : 175,692.95 = 69,951.23 : x
  2. Step 2: Convert to fraction form
    127,312.83/175,692.95 = 69,951.23/x
  3. Step 3: Cross multiply
    127,312.83x = 175,692.95 × 69,951.23
  4. Step 4: Simplify right side
    127,312.83x = 12,289,936,726.61
  5. Step 5: Solve for x
    x = 12,289,936,726.61/127,312.83
  6. Step 6: Final answer
    x = 96,533.37

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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.