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Finding the Fourth Proportional to 112,547.40, 168,846.70 and 65,776.20

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Solution

The fourth proportional to 112,547.40, 168,846.70 and 65,776.20 is: 98,679.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,547.40 : 168,846.70 = 65,776.20 : x
  2. Step 2: Convert to fraction form
    112,547.40/168,846.70 = 65,776.20/x
  3. Step 3: Cross multiply
    112,547.40x = 168,846.70 × 65,776.20
  4. Step 4: Simplify right side
    112,547.40x = 11,106,094,308.54
  5. Step 5: Solve for x
    x = 11,106,094,308.54/112,547.40
  6. Step 6: Final answer
    x = 98,679.26

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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.