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Finding the Fourth Proportional to 157,175.78, 235,763.75 and 51,994.75

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Solution

The fourth proportional to 157,175.78, 235,763.75 and 51,994.75 is: 77,992.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,175.78 : 235,763.75 = 51,994.75 : x
  2. Step 2: Convert to fraction form
    157,175.78/235,763.75 = 51,994.75/x
  3. Step 3: Cross multiply
    157,175.78x = 235,763.75 × 51,994.75
  4. Step 4: Simplify right side
    157,175.78x = 12,258,477,567.51
  5. Step 5: Solve for x
    x = 12,258,477,567.51/157,175.78
  6. Step 6: Final answer
    x = 77,992.15

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1.5x scale

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.