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Finding the Fourth Proportional to 93,454.77, 128,967.21 and 51,013.34

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Solution

The fourth proportional to 93,454.77, 128,967.21 and 51,013.34 is: 70,398.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,454.77 : 128,967.21 = 51,013.34 : x
  2. Step 2: Convert to fraction form
    93,454.77/128,967.21 = 51,013.34/x
  3. Step 3: Cross multiply
    93,454.77x = 128,967.21 × 51,013.34
  4. Step 4: Simplify right side
    93,454.77x = 6,579,047,487.75
  5. Step 5: Solve for x
    x = 6,579,047,487.75/93,454.77
  6. Step 6: Final answer
    x = 70,398.20

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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.