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Finding the Fourth Proportional to 93,505.66, 129,022.74 and 53,220.11

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Solution

The fourth proportional to 93,505.66, 129,022.74 and 53,220.11 is: 73,435.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,505.66 : 129,022.74 = 53,220.11 : x
  2. Step 2: Convert to fraction form
    93,505.66/129,022.74 = 53,220.11/x
  3. Step 3: Cross multiply
    93,505.66x = 129,022.74 × 53,220.11
  4. Step 4: Simplify right side
    93,505.66x = 6,866,603,770.19
  5. Step 5: Solve for x
    x = 6,866,603,770.19/93,505.66
  6. Step 6: Final answer
    x = 73,435.17

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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.