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Finding the Fourth Proportional to 173,885,368.80, 260,828,053.20 and 105,860,920.80

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Solution

The fourth proportional to 173,885,368.80, 260,828,053.20 and 105,860,920.80 is: 158,791,381.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,885,368.80 : 260,828,053.20 = 105,860,920.80 : x
  2. Step 2: Convert to fraction form
    173,885,368.80/260,828,053.20 = 105,860,920.80/x
  3. Step 3: Cross multiply
    173,885,368.80x = 260,828,053.20 × 105,860,920.80
  4. Step 4: Simplify right side
    173,885,368.80x = 27,611,497,882,223,384
  5. Step 5: Solve for x
    x = 27,611,497,882,223,384/173,885,368.80
  6. Step 6: Final answer
    x = 158,791,381.20

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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.