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Finding the Fourth Proportional to 145,647.50, 218,483.10 and 40,466.48

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Solution

The fourth proportional to 145,647.50, 218,483.10 and 40,466.48 is: 60,703.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,647.50 : 218,483.10 = 40,466.48 : x
  2. Step 2: Convert to fraction form
    145,647.50/218,483.10 = 40,466.48/x
  3. Step 3: Cross multiply
    145,647.50x = 218,483.10 × 40,466.48
  4. Step 4: Simplify right side
    145,647.50x = 8,841,240,904.07
  5. Step 5: Solve for x
    x = 8,841,240,904.07/145,647.50
  6. Step 6: Final answer
    x = 60,703.01

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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.