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Finding the Fourth Proportional to 111,063.84, 153,278.64 and 60,770.40

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Solution

The fourth proportional to 111,063.84, 153,278.64 and 60,770.40 is: 83,868.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,063.84 : 153,278.64 = 60,770.40 : x
  2. Step 2: Convert to fraction form
    111,063.84/153,278.64 = 60,770.40/x
  3. Step 3: Cross multiply
    111,063.84x = 153,278.64 × 60,770.40
  4. Step 4: Simplify right side
    111,063.84x = 9,314,804,264.26
  5. Step 5: Solve for x
    x = 9,314,804,264.26/111,063.84
  6. Step 6: Final answer
    x = 83,868.92

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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.