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Finding the Fourth Proportional to 108,671.40, 163,019.28 and 97,509.48

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Solution

The fourth proportional to 108,671.40, 163,019.28 and 97,509.48 is: 146,275.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,671.40 : 163,019.28 = 97,509.48 : x
  2. Step 2: Convert to fraction form
    108,671.40/163,019.28 = 97,509.48/x
  3. Step 3: Cross multiply
    108,671.40x = 163,019.28 × 97,509.48
  4. Step 4: Simplify right side
    108,671.40x = 15,895,925,222.77
  5. Step 5: Solve for x
    x = 15,895,925,222.77/108,671.40
  6. Step 6: Final answer
    x = 146,275.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.