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Finding the Fourth Proportional to 273,055.80, 376,771.32 and 152,170.68

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Solution

The fourth proportional to 273,055.80, 376,771.32 and 152,170.68 is: 209,970.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,055.80 : 376,771.32 = 152,170.68 : x
  2. Step 2: Convert to fraction form
    273,055.80/376,771.32 = 152,170.68/x
  3. Step 3: Cross multiply
    273,055.80x = 376,771.32 × 152,170.68
  4. Step 4: Simplify right side
    273,055.80x = 57,333,547,968.90
  5. Step 5: Solve for x
    x = 57,333,547,968.90/273,055.80
  6. Step 6: Final answer
    x = 209,970.08

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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.