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Finding the Fourth Proportional to 103,673.19, 155,467.93 and 40,484.28

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Solution

The fourth proportional to 103,673.19, 155,467.93 and 40,484.28 is: 60,710.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,673.19 : 155,467.93 = 40,484.28 : x
  2. Step 2: Convert to fraction form
    103,673.19/155,467.93 = 40,484.28/x
  3. Step 3: Cross multiply
    103,673.19x = 155,467.93 × 40,484.28
  4. Step 4: Simplify right side
    103,673.19x = 6,294,007,209.14
  5. Step 5: Solve for x
    x = 6,294,007,209.14/103,673.19
  6. Step 6: Final answer
    x = 60,710.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.