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Finding the Fourth Proportional to 75,303,312.90, 112,954,969.35 and 75,303,312.90

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Solution

The fourth proportional to 75,303,312.90, 112,954,969.35 and 75,303,312.90 is: 112,954,969.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,303,312.90 : 112,954,969.35 = 75,303,312.90 : x
  2. Step 2: Convert to fraction form
    75,303,312.90/112,954,969.35 = 75,303,312.90/x
  3. Step 3: Cross multiply
    75,303,312.90x = 112,954,969.35 × 75,303,312.90
  4. Step 4: Simplify right side
    75,303,312.90x = 8,505,883,400,572,960
  5. Step 5: Solve for x
    x = 8,505,883,400,572,960/75,303,312.90
  6. Step 6: Final answer
    x = 112,954,969.35

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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.