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Finding the Fourth Proportional to 124,690.60, 172,030.34 and 70,962.16

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Solution

The fourth proportional to 124,690.60, 172,030.34 and 70,962.16 is: 97,903.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,690.60 : 172,030.34 = 70,962.16 : x
  2. Step 2: Convert to fraction form
    124,690.60/172,030.34 = 70,962.16/x
  3. Step 3: Cross multiply
    124,690.60x = 172,030.34 × 70,962.16
  4. Step 4: Simplify right side
    124,690.60x = 12,207,644,511.93
  5. Step 5: Solve for x
    x = 12,207,644,511.93/124,690.60
  6. Step 6: Final answer
    x = 97,903.49

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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.