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Finding the Fourth Proportional to 66,863,115.40, 93,417,042.80 and 66,863,115.40

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Solution

The fourth proportional to 66,863,115.40, 93,417,042.80 and 66,863,115.40 is: 93,417,042.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,863,115.40 : 93,417,042.80 = 66,863,115.40 : x
  2. Step 2: Convert to fraction form
    66,863,115.40/93,417,042.80 = 66,863,115.40/x
  3. Step 3: Cross multiply
    66,863,115.40x = 93,417,042.80 × 66,863,115.40
  4. Step 4: Simplify right side
    66,863,115.40x = 6,246,154,513,063,139
  5. Step 5: Solve for x
    x = 6,246,154,513,063,139/66,863,115.40
  6. Step 6: Final answer
    x = 93,417,042.80

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1.5x scale

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.