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Finding the Fourth Proportional to 171,070.16, 256,605.56 and 65,938.64

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Solution

The fourth proportional to 171,070.16, 256,605.56 and 65,938.64 is: 98,908.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,070.16 : 256,605.56 = 65,938.64 : x
  2. Step 2: Convert to fraction form
    171,070.16/256,605.56 = 65,938.64/x
  3. Step 3: Cross multiply
    171,070.16x = 256,605.56 × 65,938.64
  4. Step 4: Simplify right side
    171,070.16x = 16,920,221,642.84
  5. Step 5: Solve for x
    x = 16,920,221,642.84/171,070.16
  6. Step 6: Final answer
    x = 98,908.08

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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.