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Finding the Fourth Proportional to 93,394.50, 128,874.60 and 57,600.60

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Solution

The fourth proportional to 93,394.50, 128,874.60 and 57,600.60 is: 79,482.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,394.50 : 128,874.60 = 57,600.60 : x
  2. Step 2: Convert to fraction form
    93,394.50/128,874.60 = 57,600.60/x
  3. Step 3: Cross multiply
    93,394.50x = 128,874.60 × 57,600.60
  4. Step 4: Simplify right side
    93,394.50x = 7,423,254,284.76
  5. Step 5: Solve for x
    x = 7,423,254,284.76/93,394.50
  6. Step 6: Final answer
    x = 79,482.78

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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.