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Finding the Fourth Proportional to 111,547.68, 153,936 and 60,560.40

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Solution

The fourth proportional to 111,547.68, 153,936 and 60,560.40 is: 83,573.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,547.68 : 153,936 = 60,560.40 : x
  2. Step 2: Convert to fraction form
    111,547.68/153,936 = 60,560.40/x
  3. Step 3: Cross multiply
    111,547.68x = 153,936 × 60,560.40
  4. Step 4: Simplify right side
    111,547.68x = 9,322,425,734.40
  5. Step 5: Solve for x
    x = 9,322,425,734.40/111,547.68
  6. Step 6: Final answer
    x = 83,573.46

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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.