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Finding the Fourth Proportional to 93,695.85, 129,307.30 and 53,410.57

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Solution

The fourth proportional to 93,695.85, 129,307.30 and 53,410.57 is: 73,710.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,695.85 : 129,307.30 = 53,410.57 : x
  2. Step 2: Convert to fraction form
    93,695.85/129,307.30 = 53,410.57/x
  3. Step 3: Cross multiply
    93,695.85x = 129,307.30 × 53,410.57
  4. Step 4: Simplify right side
    93,695.85x = 6,906,376,331.11
  5. Step 5: Solve for x
    x = 6,906,376,331.11/93,695.85
  6. Step 6: Final answer
    x = 73,710.59

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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.