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Finding the Fourth Proportional to 93,706.80, 129,316.32 and 51,267.12

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Solution

The fourth proportional to 93,706.80, 129,316.32 and 51,267.12 is: 70,749.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,706.80 : 129,316.32 = 51,267.12 : x
  2. Step 2: Convert to fraction form
    93,706.80/129,316.32 = 51,267.12/x
  3. Step 3: Cross multiply
    93,706.80x = 129,316.32 × 51,267.12
  4. Step 4: Simplify right side
    93,706.80x = 6,629,675,295.40
  5. Step 5: Solve for x
    x = 6,629,675,295.40/93,706.80
  6. Step 6: Final answer
    x = 70,749.14

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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.