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Finding the Fourth Proportional to 103,452.10, 142,746.62 and 61,019.04

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Solution

The fourth proportional to 103,452.10, 142,746.62 and 61,019.04 is: 84,196.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,452.10 : 142,746.62 = 61,019.04 : x
  2. Step 2: Convert to fraction form
    103,452.10/142,746.62 = 61,019.04/x
  3. Step 3: Cross multiply
    103,452.10x = 142,746.62 × 61,019.04
  4. Step 4: Simplify right side
    103,452.10x = 8,710,261,715.64
  5. Step 5: Solve for x
    x = 8,710,261,715.64/103,452.10
  6. Step 6: Final answer
    x = 84,196.08

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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.