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Finding the Fourth Proportional to 186,788,425.95, 257,791,804.88 and 108,456,384.51

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Solution

The fourth proportional to 186,788,425.95, 257,791,804.88 and 108,456,384.51 is: 149,683,616.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,788,425.95 : 257,791,804.88 = 108,456,384.51 : x
  2. Step 2: Convert to fraction form
    186,788,425.95/257,791,804.88 = 108,456,384.51/x
  3. Step 3: Cross multiply
    186,788,425.95x = 257,791,804.88 × 108,456,384.51
  4. Step 4: Simplify right side
    186,788,425.95x = 27,959,167,113,049,892
  5. Step 5: Solve for x
    x = 27,959,167,113,049,892/186,788,425.95
  6. Step 6: Final answer
    x = 149,683,616.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.