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Finding the Fourth Proportional to 186,254.88, 257,031 and 101,372.64

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Solution

The fourth proportional to 186,254.88, 257,031 and 101,372.64 is: 139,893.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,254.88 : 257,031 = 101,372.64 : x
  2. Step 2: Convert to fraction form
    186,254.88/257,031 = 101,372.64/x
  3. Step 3: Cross multiply
    186,254.88x = 257,031 × 101,372.64
  4. Step 4: Simplify right side
    186,254.88x = 26,055,911,031.84
  5. Step 5: Solve for x
    x = 26,055,911,031.84/186,254.88
  6. Step 6: Final answer
    x = 139,893.84

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1.5x scale

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.