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Finding the Fourth Proportional to 120,547.72, 180,820.62 and 36,307.48

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Solution

The fourth proportional to 120,547.72, 180,820.62 and 36,307.48 is: 54,460.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,547.72 : 180,820.62 = 36,307.48 : x
  2. Step 2: Convert to fraction form
    120,547.72/180,820.62 = 36,307.48/x
  3. Step 3: Cross multiply
    120,547.72x = 180,820.62 × 36,307.48
  4. Step 4: Simplify right side
    120,547.72x = 6,565,141,044.24
  5. Step 5: Solve for x
    x = 6,565,141,044.24/120,547.72
  6. Step 6: Final answer
    x = 54,460.93

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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.