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Finding the Third Proportional to 69,615,151 and 147,528,835

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Solution

The third proportional to 69,615,151 and 147,528,835 is: 312,643,969.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,615,151 : 147,528,835 = 147,528,835 : x
  2. Step 2: Convert to fraction form
    69,615,151/147,528,835 = 147,528,835/x
  3. Step 3: Cross multiply
    69,615,151x = 147,528,835 × 147,528,835
  4. Step 4: Simplify right side
    69,615,151x = 21,764,757,156,457,224
  5. Step 5: Solve for x
    x = 21,764,757,156,457,224/69,615,151
  6. Step 6: Final answer
    x = 312,643,969.65

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.