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Finding the Fourth Proportional to 105,461.99, 145,605.47 and 94,111.97

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Solution

The fourth proportional to 105,461.99, 145,605.47 and 94,111.97 is: 129,935.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,461.99 : 145,605.47 = 94,111.97 : x
  2. Step 2: Convert to fraction form
    105,461.99/145,605.47 = 94,111.97/x
  3. Step 3: Cross multiply
    105,461.99x = 145,605.47 × 94,111.97
  4. Step 4: Simplify right side
    105,461.99x = 13,703,217,624.48
  5. Step 5: Solve for x
    x = 13,703,217,624.48/105,461.99
  6. Step 6: Final answer
    x = 129,935.13

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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.