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Finding the Fourth Proportional to 93,309.81, 128,763.70 and 52,472.77

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Solution

The fourth proportional to 93,309.81, 128,763.70 and 52,472.77 is: 72,410.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,309.81 : 128,763.70 = 52,472.77 : x
  2. Step 2: Convert to fraction form
    93,309.81/128,763.70 = 52,472.77/x
  3. Step 3: Cross multiply
    93,309.81x = 128,763.70 × 52,472.77
  4. Step 4: Simplify right side
    93,309.81x = 6,756,587,370.63
  5. Step 5: Solve for x
    x = 6,756,587,370.63/93,309.81
  6. Step 6: Final answer
    x = 72,410.26

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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.