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Finding the Fourth Proportional to 126,646.64, 174,765.12 and 70,054.64

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Solution

The fourth proportional to 126,646.64, 174,765.12 and 70,054.64 is: 96,671.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,646.64 : 174,765.12 = 70,054.64 : x
  2. Step 2: Convert to fraction form
    126,646.64/174,765.12 = 70,054.64/x
  3. Step 3: Cross multiply
    126,646.64x = 174,765.12 × 70,054.64
  4. Step 4: Simplify right side
    126,646.64x = 12,243,107,566.16
  5. Step 5: Solve for x
    x = 12,243,107,566.16/126,646.64
  6. Step 6: Final answer
    x = 96,671.40

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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.