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Finding the Fourth Proportional to 125,698,020.40, 188,547,030.60 and 125,698,020.40

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Solution

The fourth proportional to 125,698,020.40, 188,547,030.60 and 125,698,020.40 is: 188,547,030.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,698,020.40 : 188,547,030.60 = 125,698,020.40 : x
  2. Step 2: Convert to fraction form
    125,698,020.40/188,547,030.60 = 125,698,020.40/x
  3. Step 3: Cross multiply
    125,698,020.40x = 188,547,030.60 × 125,698,020.40
  4. Step 4: Simplify right side
    125,698,020.40x = 23,699,988,498,718,224
  5. Step 5: Solve for x
    x = 23,699,988,498,718,224/125,698,020.40
  6. Step 6: Final answer
    x = 188,547,030.60

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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.