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Finding the Fourth Proportional to 93,066.56, 128,366.80 and 61,225.28

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Solution

The fourth proportional to 93,066.56, 128,366.80 and 61,225.28 is: 84,448.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,066.56 : 128,366.80 = 61,225.28 : x
  2. Step 2: Convert to fraction form
    93,066.56/128,366.80 = 61,225.28/x
  3. Step 3: Cross multiply
    93,066.56x = 128,366.80 × 61,225.28
  4. Step 4: Simplify right side
    93,066.56x = 7,859,293,272.70
  5. Step 5: Solve for x
    x = 7,859,293,272.70/93,066.56
  6. Step 6: Final answer
    x = 84,448.09

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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.