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Finding the Fourth Proportional to 262,028.72, 393,043.08 and 65,036.72

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Solution

The fourth proportional to 262,028.72, 393,043.08 and 65,036.72 is: 97,555.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,028.72 : 393,043.08 = 65,036.72 : x
  2. Step 2: Convert to fraction form
    262,028.72/393,043.08 = 65,036.72/x
  3. Step 3: Cross multiply
    262,028.72x = 393,043.08 × 65,036.72
  4. Step 4: Simplify right side
    262,028.72x = 25,562,232,741.90
  5. Step 5: Solve for x
    x = 25,562,232,741.90/262,028.72
  6. Step 6: Final answer
    x = 97,555.08

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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.