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Finding the Fourth Proportional to 123,852.59, 170,927.12 and 70,147.16

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Solution

The fourth proportional to 123,852.59, 170,927.12 and 70,147.16 is: 96,809.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,852.59 : 170,927.12 = 70,147.16 : x
  2. Step 2: Convert to fraction form
    123,852.59/170,927.12 = 70,147.16/x
  3. Step 3: Cross multiply
    123,852.59x = 170,927.12 × 70,147.16
  4. Step 4: Simplify right side
    123,852.59x = 11,990,051,684.24
  5. Step 5: Solve for x
    x = 11,990,051,684.24/123,852.59
  6. Step 6: Final answer
    x = 96,809.05

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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.