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Finding the Fourth Proportional to 161,758,492.20, 242,637,738.30 and 161,758,492.20

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Solution

The fourth proportional to 161,758,492.20, 242,637,738.30 and 161,758,492.20 is: 242,637,738.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,758,492.20 : 242,637,738.30 = 161,758,492.20 : x
  2. Step 2: Convert to fraction form
    161,758,492.20/242,637,738.30 = 161,758,492.20/x
  3. Step 3: Cross multiply
    161,758,492.20x = 242,637,738.30 × 161,758,492.20
  4. Step 4: Simplify right side
    161,758,492.20x = 39,248,714,698,226,192
  5. Step 5: Solve for x
    x = 39,248,714,698,226,192/161,758,492.20
  6. Step 6: Final answer
    x = 242,637,738.30

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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.