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Finding the Fourth Proportional to 72,364.59, 99,870.54 and 41,738.88

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Solution

The fourth proportional to 72,364.59, 99,870.54 and 41,738.88 is: 57,603.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,364.59 : 99,870.54 = 41,738.88 : x
  2. Step 2: Convert to fraction form
    72,364.59/99,870.54 = 41,738.88/x
  3. Step 3: Cross multiply
    72,364.59x = 99,870.54 × 41,738.88
  4. Step 4: Simplify right side
    72,364.59x = 4,168,484,484.60
  5. Step 5: Solve for x
    x = 4,168,484,484.60/72,364.59
  6. Step 6: Final answer
    x = 57,603.93

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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.