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Finding the Fourth Proportional to 75,356.80, 112,840.80 and 59,804.80

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Solution

The fourth proportional to 75,356.80, 112,840.80 and 59,804.80 is: 89,552.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,356.80 : 112,840.80 = 59,804.80 : x
  2. Step 2: Convert to fraction form
    75,356.80/112,840.80 = 59,804.80/x
  3. Step 3: Cross multiply
    75,356.80x = 112,840.80 × 59,804.80
  4. Step 4: Simplify right side
    75,356.80x = 6,748,421,475.84
  5. Step 5: Solve for x
    x = 6,748,421,475.84/75,356.80
  6. Step 6: Final answer
    x = 89,552.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.