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Finding the Fourth Proportional to 101,795.95, 140,478.60 and 56,473.93

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Solution

The fourth proportional to 101,795.95, 140,478.60 and 56,473.93 is: 77,934.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,795.95 : 140,478.60 = 56,473.93 : x
  2. Step 2: Convert to fraction form
    101,795.95/140,478.60 = 56,473.93/x
  3. Step 3: Cross multiply
    101,795.95x = 140,478.60 × 56,473.93
  4. Step 4: Simplify right side
    101,795.95x = 7,933,378,622.90
  5. Step 5: Solve for x
    x = 7,933,378,622.90/101,795.95
  6. Step 6: Final answer
    x = 77,934.13

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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.