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Finding the Fourth Proportional to 220,692,060.80, 304,564,492.32 and 122,906,916.80

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Solution

The fourth proportional to 220,692,060.80, 304,564,492.32 and 122,906,916.80 is: 169,616,807.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,692,060.80 : 304,564,492.32 = 122,906,916.80 : x
  2. Step 2: Convert to fraction form
    220,692,060.80/304,564,492.32 = 122,906,916.80/x
  3. Step 3: Cross multiply
    220,692,060.80x = 304,564,492.32 × 122,906,916.80
  4. Step 4: Simplify right side
    220,692,060.80x = 37,433,082,717,808,480
  5. Step 5: Solve for x
    x = 37,433,082,717,808,480/220,692,060.80
  6. Step 6: Final answer
    x = 169,616,807.16

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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.