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Finding the Fourth Proportional to 110,913.84, 153,071.64 and 60,620.40

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Solution

The fourth proportional to 110,913.84, 153,071.64 and 60,620.40 is: 83,661.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,913.84 : 153,071.64 = 60,620.40 : x
  2. Step 2: Convert to fraction form
    110,913.84/153,071.64 = 60,620.40/x
  3. Step 3: Cross multiply
    110,913.84x = 153,071.64 × 60,620.40
  4. Step 4: Simplify right side
    110,913.84x = 9,279,264,045.46
  5. Step 5: Solve for x
    x = 9,279,264,045.46/110,913.84
  6. Step 6: Final answer
    x = 83,661.91

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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.