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Finding the Fourth Proportional to 74,884,813.10, 105,065,486.50 and 74,884,813.10

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Solution

The fourth proportional to 74,884,813.10, 105,065,486.50 and 74,884,813.10 is: 105,065,486.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,884,813.10 : 105,065,486.50 = 74,884,813.10 : x
  2. Step 2: Convert to fraction form
    74,884,813.10/105,065,486.50 = 74,884,813.10/x
  3. Step 3: Cross multiply
    74,884,813.10x = 105,065,486.50 × 74,884,813.10
  4. Step 4: Simplify right side
    74,884,813.10x = 7,867,809,319,813,073
  5. Step 5: Solve for x
    x = 7,867,809,319,813,073/74,884,813.10
  6. Step 6: Final answer
    x = 105,065,486.50

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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.