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Finding the Fourth Proportional to 147,492,093.15, 221,238,139.73 and 147,492,093.15

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Solution

The fourth proportional to 147,492,093.15, 221,238,139.73 and 147,492,093.15 is: 221,238,139.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,492,093.15 : 221,238,139.73 = 147,492,093.15 : x
  2. Step 2: Convert to fraction form
    147,492,093.15/221,238,139.73 = 147,492,093.15/x
  3. Step 3: Cross multiply
    147,492,093.15x = 221,238,139.73 × 147,492,093.15
  4. Step 4: Simplify right side
    147,492,093.15x = 32,630,876,312,652,416
  5. Step 5: Solve for x
    x = 32,630,876,312,652,416/147,492,093.15
  6. Step 6: Final answer
    x = 221,238,139.73

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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.