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Finding the Fourth Proportional to 93,000.02, 128,274.71 and 57,209.76

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Solution

The fourth proportional to 93,000.02, 128,274.71 and 57,209.76 is: 78,909.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,000.02 : 128,274.71 = 57,209.76 : x
  2. Step 2: Convert to fraction form
    93,000.02/128,274.71 = 57,209.76/x
  3. Step 3: Cross multiply
    93,000.02x = 128,274.71 × 57,209.76
  4. Step 4: Simplify right side
    93,000.02x = 7,338,565,087.12
  5. Step 5: Solve for x
    x = 7,338,565,087.12/93,000.02
  6. Step 6: Final answer
    x = 78,909.29

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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.