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Finding the Fourth Proportional to 180,894.86, 249,649.85 and 100,348.35

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Solution

The fourth proportional to 180,894.86, 249,649.85 and 100,348.35 is: 138,489.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,894.86 : 249,649.85 = 100,348.35 : x
  2. Step 2: Convert to fraction form
    180,894.86/249,649.85 = 100,348.35/x
  3. Step 3: Cross multiply
    180,894.86x = 249,649.85 × 100,348.35
  4. Step 4: Simplify right side
    180,894.86x = 25,051,950,023.51
  5. Step 5: Solve for x
    x = 25,051,950,023.51/180,894.86
  6. Step 6: Final answer
    x = 138,489.01

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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.