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Finding the Fourth Proportional to 93,651.70, 129,237.38 and 51,210.20

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Solution

The fourth proportional to 93,651.70, 129,237.38 and 51,210.20 is: 70,669.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,651.70 : 129,237.38 = 51,210.20 : x
  2. Step 2: Convert to fraction form
    93,651.70/129,237.38 = 51,210.20/x
  3. Step 3: Cross multiply
    93,651.70x = 129,237.38 × 51,210.20
  4. Step 4: Simplify right side
    93,651.70x = 6,618,272,077.28
  5. Step 5: Solve for x
    x = 6,618,272,077.28/93,651.70
  6. Step 6: Final answer
    x = 70,669.00

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Double scale
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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.