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Finding the Fourth Proportional to 92,602.12, 127,800.40 and 66,782.01

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Solution

The fourth proportional to 92,602.12, 127,800.40 and 66,782.01 is: 92,166.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,602.12 : 127,800.40 = 66,782.01 : x
  2. Step 2: Convert to fraction form
    92,602.12/127,800.40 = 66,782.01/x
  3. Step 3: Cross multiply
    92,602.12x = 127,800.40 × 66,782.01
  4. Step 4: Simplify right side
    92,602.12x = 8,534,767,590.80
  5. Step 5: Solve for x
    x = 8,534,767,590.80/92,602.12
  6. Step 6: Final answer
    x = 92,166.01

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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.