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Finding the Fourth Proportional to 127,083.48, 175,396.16 and 70,513.08

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Solution

The fourth proportional to 127,083.48, 175,396.16 and 70,513.08 is: 97,319.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,083.48 : 175,396.16 = 70,513.08 : x
  2. Step 2: Convert to fraction form
    127,083.48/175,396.16 = 70,513.08/x
  3. Step 3: Cross multiply
    127,083.48x = 175,396.16 × 70,513.08
  4. Step 4: Simplify right side
    127,083.48x = 12,367,723,461.77
  5. Step 5: Solve for x
    x = 12,367,723,461.77/127,083.48
  6. Step 6: Final answer
    x = 97,319.68

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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.