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Finding the Fourth Proportional to 115,841.12, 159,813.23 and 70,482.74

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Solution

The fourth proportional to 115,841.12, 159,813.23 and 70,482.74 is: 97,237.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,841.12 : 159,813.23 = 70,482.74 : x
  2. Step 2: Convert to fraction form
    115,841.12/159,813.23 = 70,482.74/x
  3. Step 3: Cross multiply
    115,841.12x = 159,813.23 × 70,482.74
  4. Step 4: Simplify right side
    115,841.12x = 11,264,073,187.17
  5. Step 5: Solve for x
    x = 11,264,073,187.17/115,841.12
  6. Step 6: Final answer
    x = 97,237.26

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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.