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Finding the Fourth Proportional to 93,309.30, 128,763.01 and 52,472.27

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Solution

The fourth proportional to 93,309.30, 128,763.01 and 52,472.27 is: 72,409.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,309.30 : 128,763.01 = 52,472.27 : x
  2. Step 2: Convert to fraction form
    93,309.30/128,763.01 = 52,472.27/x
  3. Step 3: Cross multiply
    93,309.30x = 128,763.01 × 52,472.27
  4. Step 4: Simplify right side
    93,309.30x = 6,756,486,848.51
  5. Step 5: Solve for x
    x = 6,756,486,848.51/93,309.30
  6. Step 6: Final answer
    x = 72,409.57

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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.