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Finding the Fourth Proportional to 93,396.92, 129,028.28 and 61,208.06

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Solution

The fourth proportional to 93,396.92, 129,028.28 and 61,208.06 is: 84,559.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,396.92 : 129,028.28 = 61,208.06 : x
  2. Step 2: Convert to fraction form
    93,396.92/129,028.28 = 61,208.06/x
  3. Step 3: Cross multiply
    93,396.92x = 129,028.28 × 61,208.06
  4. Step 4: Simplify right side
    93,396.92x = 7,897,569,752.76
  5. Step 5: Solve for x
    x = 7,897,569,752.76/93,396.92
  6. Step 6: Final answer
    x = 84,559.21

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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.