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Finding the Fourth Proportional to 31,106,547.60, 43,593,956.40 and 31,106,547.60

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Solution

The fourth proportional to 31,106,547.60, 43,593,956.40 and 31,106,547.60 is: 43,593,956.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,106,547.60 : 43,593,956.40 = 31,106,547.60 : x
  2. Step 2: Convert to fraction form
    31,106,547.60/43,593,956.40 = 31,106,547.60/x
  3. Step 3: Cross multiply
    31,106,547.60x = 43,593,956.40 × 31,106,547.60
  4. Step 4: Simplify right side
    31,106,547.60x = 1,356,057,479,828,924.75
  5. Step 5: Solve for x
    x = 1,356,057,479,828,924.75/31,106,547.60
  6. Step 6: Final answer
    x = 43,593,956.40

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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.