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Finding the Fourth Proportional to 145,554.40, 218,199.60 and 52,038.40

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Solution

The fourth proportional to 145,554.40, 218,199.60 and 52,038.40 is: 78,010.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,554.40 : 218,199.60 = 52,038.40 : x
  2. Step 2: Convert to fraction form
    145,554.40/218,199.60 = 52,038.40/x
  3. Step 3: Cross multiply
    145,554.40x = 218,199.60 × 52,038.40
  4. Step 4: Simplify right side
    145,554.40x = 11,354,758,064.64
  5. Step 5: Solve for x
    x = 11,354,758,064.64/145,554.40
  6. Step 6: Final answer
    x = 78,010.41

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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.