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Finding the Fourth Proportional to 93,734.79, 129,354 and 51,293.32

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Solution

The fourth proportional to 93,734.79, 129,354 and 51,293.32 is: 70,784.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,734.79 : 129,354 = 51,293.32 : x
  2. Step 2: Convert to fraction form
    93,734.79/129,354 = 51,293.32/x
  3. Step 3: Cross multiply
    93,734.79x = 129,354 × 51,293.32
  4. Step 4: Simplify right side
    93,734.79x = 6,634,996,115.28
  5. Step 5: Solve for x
    x = 6,634,996,115.28/93,734.79
  6. Step 6: Final answer
    x = 70,784.78

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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.