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Finding the Fourth Proportional to 94,703.04, 130,713.12 and 56,970

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Solution

The fourth proportional to 94,703.04, 130,713.12 and 56,970 is: 78,632.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,703.04 : 130,713.12 = 56,970 : x
  2. Step 2: Convert to fraction form
    94,703.04/130,713.12 = 56,970/x
  3. Step 3: Cross multiply
    94,703.04x = 130,713.12 × 56,970
  4. Step 4: Simplify right side
    94,703.04x = 7,446,726,446.40
  5. Step 5: Solve for x
    x = 7,446,726,446.40/94,703.04
  6. Step 6: Final answer
    x = 78,632.39

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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.