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Finding the Fourth Proportional to 253,386.76, 349,683.06 and 163,962.76

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Solution

The fourth proportional to 253,386.76, 349,683.06 and 163,962.76 is: 226,274.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,386.76 : 349,683.06 = 163,962.76 : x
  2. Step 2: Convert to fraction form
    253,386.76/349,683.06 = 163,962.76/x
  3. Step 3: Cross multiply
    253,386.76x = 349,683.06 × 163,962.76
  4. Step 4: Simplify right side
    253,386.76x = 57,334,999,642.85
  5. Step 5: Solve for x
    x = 57,334,999,642.85/253,386.76
  6. Step 6: Final answer
    x = 226,274.65

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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.