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Finding the Fourth Proportional to 145,925.69, 201,362.69 and 107,706.11

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Solution

The fourth proportional to 145,925.69, 201,362.69 and 107,706.11 is: 148,623.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,925.69 : 201,362.69 = 107,706.11 : x
  2. Step 2: Convert to fraction form
    145,925.69/201,362.69 = 107,706.11/x
  3. Step 3: Cross multiply
    145,925.69x = 201,362.69 × 107,706.11
  4. Step 4: Simplify right side
    145,925.69x = 21,687,991,301.49
  5. Step 5: Solve for x
    x = 21,687,991,301.49/145,925.69
  6. Step 6: Final answer
    x = 148,623.54

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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.