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Finding the Fourth Proportional to 100,905,848.80, 141,363,847.70 and 100,905,848.80

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Solution

The fourth proportional to 100,905,848.80, 141,363,847.70 and 100,905,848.80 is: 141,363,847.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,905,848.80 : 141,363,847.70 = 100,905,848.80 : x
  2. Step 2: Convert to fraction form
    100,905,848.80/141,363,847.70 = 100,905,848.80/x
  3. Step 3: Cross multiply
    100,905,848.80x = 141,363,847.70 × 100,905,848.80
  4. Step 4: Simplify right side
    100,905,848.80x = 14,264,439,041,802,426
  5. Step 5: Solve for x
    x = 14,264,439,041,802,426/100,905,848.80
  6. Step 6: Final answer
    x = 141,363,847.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.