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Finding the Fourth Proportional to 156,878.16, 216,410.76 and 97,158.48

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Solution

The fourth proportional to 156,878.16, 216,410.76 and 97,158.48 is: 134,028.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,878.16 : 216,410.76 = 97,158.48 : x
  2. Step 2: Convert to fraction form
    156,878.16/216,410.76 = 97,158.48/x
  3. Step 3: Cross multiply
    156,878.16x = 216,410.76 × 97,158.48
  4. Step 4: Simplify right side
    156,878.16x = 21,026,140,497.24
  5. Step 5: Solve for x
    x = 21,026,140,497.24/156,878.16
  6. Step 6: Final answer
    x = 134,028.47

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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.