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Finding the Fourth Proportional to 104,608.38, 144,356.50 and 56,860.50

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Solution

The fourth proportional to 104,608.38, 144,356.50 and 56,860.50 is: 78,465.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,608.38 : 144,356.50 = 56,860.50 : x
  2. Step 2: Convert to fraction form
    104,608.38/144,356.50 = 56,860.50/x
  3. Step 3: Cross multiply
    104,608.38x = 144,356.50 × 56,860.50
  4. Step 4: Simplify right side
    104,608.38x = 8,208,182,768.25
  5. Step 5: Solve for x
    x = 8,208,182,768.25/104,608.38
  6. Step 6: Final answer
    x = 78,465.82

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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.