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Finding the Fourth Proportional to 102,354,644.40, 153,615,947.40 and 98,995,412.40

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Solution

The fourth proportional to 102,354,644.40, 153,615,947.40 and 98,995,412.40 is: 148,574,343.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,354,644.40 : 153,615,947.40 = 98,995,412.40 : x
  2. Step 2: Convert to fraction form
    102,354,644.40/153,615,947.40 = 98,995,412.40/x
  3. Step 3: Cross multiply
    102,354,644.40x = 153,615,947.40 × 98,995,412.40
  4. Step 4: Simplify right side
    102,354,644.40x = 15,207,274,064,079,710
  5. Step 5: Solve for x
    x = 15,207,274,064,079,710/102,354,644.40
  6. Step 6: Final answer
    x = 148,574,343.19

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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.