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Finding the Fourth Proportional to 170,740.80, 256,111.20 and 59,918.40

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Solution

The fourth proportional to 170,740.80, 256,111.20 and 59,918.40 is: 89,877.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,740.80 : 256,111.20 = 59,918.40 : x
  2. Step 2: Convert to fraction form
    170,740.80/256,111.20 = 59,918.40/x
  3. Step 3: Cross multiply
    170,740.80x = 256,111.20 × 59,918.40
  4. Step 4: Simplify right side
    170,740.80x = 15,345,773,326.08
  5. Step 5: Solve for x
    x = 15,345,773,326.08/170,740.80
  6. Step 6: Final answer
    x = 89,877.60

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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.