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Finding the Fourth Proportional to 93,572.80, 129,130.80 and 51,131.33

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Solution

The fourth proportional to 93,572.80, 129,130.80 and 51,131.33 is: 70,561.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,572.80 : 129,130.80 = 51,131.33 : x
  2. Step 2: Convert to fraction form
    93,572.80/129,130.80 = 51,131.33/x
  3. Step 3: Cross multiply
    93,572.80x = 129,130.80 × 51,131.33
  4. Step 4: Simplify right side
    93,572.80x = 6,602,629,194.81
  5. Step 5: Solve for x
    x = 6,602,629,194.81/93,572.80
  6. Step 6: Final answer
    x = 70,561.42

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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.