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Finding the Fourth Proportional to 351,762.16, 485,432.18 and 190,615.79

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Solution

The fourth proportional to 351,762.16, 485,432.18 and 190,615.79 is: 263,050.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,762.16 : 485,432.18 = 190,615.79 : x
  2. Step 2: Convert to fraction form
    351,762.16/485,432.18 = 190,615.79/x
  3. Step 3: Cross multiply
    351,762.16x = 485,432.18 × 190,615.79
  4. Step 4: Simplify right side
    351,762.16x = 92,531,038,482.12
  5. Step 5: Solve for x
    x = 92,531,038,482.12/351,762.16
  6. Step 6: Final answer
    x = 263,050.01

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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.