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Finding the Fourth Proportional to 201,705,398.80, 302,516,107.80 and 86,693,693.20

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Solution

The fourth proportional to 201,705,398.80, 302,516,107.80 and 86,693,693.20 is: 130,022,492.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,705,398.80 : 302,516,107.80 = 86,693,693.20 : x
  2. Step 2: Convert to fraction form
    201,705,398.80/302,516,107.80 = 86,693,693.20/x
  3. Step 3: Cross multiply
    201,705,398.80x = 302,516,107.80 × 86,693,693.20
  4. Step 4: Simplify right side
    201,705,398.80x = 26,226,238,637,671,328
  5. Step 5: Solve for x
    x = 26,226,238,637,671,328/201,705,398.80
  6. Step 6: Final answer
    x = 130,022,492.18

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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.