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Finding the Fourth Proportional to 170,445.66, 255,386.01 and 103,683.90

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Solution

The fourth proportional to 170,445.66, 255,386.01 and 103,683.90 is: 155,354.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,445.66 : 255,386.01 = 103,683.90 : x
  2. Step 2: Convert to fraction form
    170,445.66/255,386.01 = 103,683.90/x
  3. Step 3: Cross multiply
    170,445.66x = 255,386.01 × 103,683.90
  4. Step 4: Simplify right side
    170,445.66x = 26,479,417,522.24
  5. Step 5: Solve for x
    x = 26,479,417,522.24/170,445.66
  6. Step 6: Final answer
    x = 155,354.01

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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.