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Finding the Fourth Proportional to 163,897.20, 228,931.20 and 163,897.20

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Solution

The fourth proportional to 163,897.20, 228,931.20 and 163,897.20 is: 228,931.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,897.20 : 228,931.20 = 163,897.20 : x
  2. Step 2: Convert to fraction form
    163,897.20/228,931.20 = 163,897.20/x
  3. Step 3: Cross multiply
    163,897.20x = 228,931.20 × 163,897.20
  4. Step 4: Simplify right side
    163,897.20x = 37,521,182,672.64
  5. Step 5: Solve for x
    x = 37,521,182,672.64/163,897.20
  6. Step 6: Final answer
    x = 228,931.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.